Dynatek DS3-1 for 77-78 Suzuki GS550/750
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That is the secondary ignition system used on both the GP and the Hummel VWs. On those engines the Dyna S is driven off of the distributor. Maybe just use the pickups on an AeroVee. The AeroVee solution is superior. The Dyna S distributor driven solution uses two magnets in the magnet wheel. The geometry is small enough that there is noticeable jitter in the timing, on the order of two or three degrees.
This is what Sonex sent last winter when I decided to update my secondaries. I installed them and they work like a charm.
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That’s good news!! I assume those don’t shut down the secondary ignition, with no engine rotation, like the Sonex modules have been reported to do.?.?
Wes
Here is a pic of the Dyna S as applied to a distributor driven solution. Two pickups 90 Deg apart and two magnets 180 Deg. apart turning at 1/2 crank speed. A bit of a mind bender, but correct. With the magnet wheel so small it must be hard to get the magnets exactly 180 Deg apart, magnet strength the same, etc. Like I said, there is considerable jitter in the secondary ignition.
